Untitled QuestionA box weighing 100 N is at rest on a horizontalfloor. The coeffiecient of the statie frietionbetween the hox and the floor is 0.4. What is theamallest force exerted eastward and upward at anangle of 30 with the horizontal that can start thebox in motion?cosQ2:Use dimensional analy sis to determine which of the following equation is certainlywrong:Where 2. and h are the lengths and | F) =1 ML.T* The other symbols have their usualmeaning?Q3:What is the sum å + 5 if ä (-4.0 m) i+ (3.0 m) j and 5 (-11.0 m) 1+ (7.0 m) j?What are the (b) mugnitude and (e) direction of á + bnQ4:Figure shows three forces applied to a trunk thatmoves leftward by 3.00 m over a frictionless floorThe force magnitudes are F1=7.00 Ib, F2= 10.00 Ib,and F3 - 3.00 N, and the indicated angle is 0-60.0.During the displacement, (a) what is the net work doneon the trunk by the three forces and (b) does the kineticenergy of the trunk inerease or deerease?

Answered: Image /qna-images/answer/2a376dfe-a6d9-4544-9b63-ed4572098be8.jpg

A box weighing 100 N is at rest on a horizontal floor. The coeficient of the statie friction between the hox and the floor is 0.4 What is the smallest force exerted eastward and upward at an angle of 30 with the horizontal that can start the box in motion? Fe

A box weighing 100 N is at rest on a horizontal floor. The coeficient of the statie friction between the hox and the floor is 0.4 What is the smallest force exerted eastward and upward at an angle of 30 with the horizontal that can start the box in motion? Fe

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

A crane cable is connected to a heavy crate. The crane lifts the crate from the ground, acceleratingit up at 0.33 m/s? The tension in the crane's cable will be what the weight of the crate? , a) greater than, b) equal to, c less thanor d) not enough information to tell. A person sits in a chair. There is a weight force W acting on them. According to Newton's thirdlaw which force is equal in magnitude and opposite in direction to W?a) the normal force of the chair pushing on the personb) the normal force of the person pushing on the chairc the gravitational force of the person pulling on the Earthd) the static friction force of the ground on the chair An object with mass m slides down a sloped, frictionless ramp. The normal force of the ramp onthe object isa) less than mgb) equal to mgc) greater than mgd) not enough information
help with question number 6
A body of mass 20 kg rests on a horizontal frictionless plane and is acted on by a horizontal force of 30N. a) What acceleration is produced? b) How far will the body travel in 10 s? c) What will be its velocity at the end of 10 s?
A 1855 kg car has a velocity of 100 km/h when the brakes are fully applied. Assume modern traction control eliminates tire skidding. Determine time and distance to stop the car if dry-pavement static friction coefficient is 0.8.Create a situational conclusion that is related to the problem above
A 21.0-kg box is released on a 26 degree incline and accelerates down the incline at 0.24 m/s2 . a) Find the friction force impeding its motion. b) Determine the coefficient of kinetic friction.
Determine the minimum force that must be applied to the 300 lb block so that it start the movement (imminent movement), knowing that the 200 lb block is attached to the wall, according to the figure. The coefficient of static friction between the two blocks is 0.3 and between the block 300 lb and the floor is 0.4. The coefficient of dynamic friction between all surfaces is 0.25.
physics need help，how do we find kinetic friction coefficient in this question？
A 5 kg box is at placed on a rough horizontal surface. The coefficient of kinetic friction between the surface and the box is 0.2. Now 20 N force is applied on the box 300 above horizontal. Label all forces acting on the box. Determine the acceleration of the box. If applied force is removed after 10 seconds, calculate total distance the box moves along the surface.
1)How quickly does a 100kg object accelerate when pushed with a 400N force? 2)How quickly would the 50kg box accelerate if the person applied a 560N force? 3)How quickly would a 70kg object accelerate if the person applied a 500N force?
A block is at rest on a rough incline as shown. The frictional force acting on the block, along the incline, is O less than the weight of the block. equal to the weight of the block. greater than the weight of the block. zero.
ass 2 kg is thrown Example 6 A body of m elocity of 20 ms~. vertically upwards with a Calculate - (ii) The P.E. at the highest point and the height to which it will reach, assuming the acceleration due to gravit 10 n )
I need the answer as soon as possible